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Left Anterior Descending
Coronary Artery (LAD)
SUPPLIES:
Anterior left ventricle
Anterior 2/3 of intraventricular septum
Apex of Left ventricle
Bundle of HIS and Bundle Branches
Left Circumflex Coronary
Artery (LCA)
Supplies:
Left Atrium
SA node in 45% of <3's
AV node in 10% <3's
Marginal(or obtuse marginal) supplies:
-Lateral Left Ventricle
-Posterior Left Ventricle
Right Coronary Artery (RCA)
Supplies: Right Atrium, SA node 55% <3's, AV node 90% <3's
Left posterior hemibundle(dual blood supply- RCA & LAD)
RCA dominant <3's (80%) -posterior descending artery supplies:
-Anterior Right Ventricle -Inferior wall of the Left ventricle
-Posterior Left Ventricle -Posterior 1/3 of septum
Marginal branch supplies:
-Lateral Right Ventricle -Inferior Right Ventricle
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